* {
    margin: 0;
}


body > div {
    /*border: 1px solid red;*/
    width: 1000px;
    min-width: 1000px;
}

.middle > div {
    width: 900px;
    margin: 50px 0;
    border: 1px solid gray;
}

.better-chinese {
    font-size: 30px;
    color: rgb(230, 145, 55);
}

.better-english {
    font-size: 20px;
    color: gray;
}

/*---------------表单--------------*/
/*元素选择器*/
form {
    width: 500px;
    margin: 50px;
}

/*属性选择器*/
input[type=text] {
    width: 500px;
    padding: 5px 10px;
    background-color: rgb(238, 238, 238);
    border: 1px dashed gray;
}

textarea {
    width: 500px;
    padding: 5px 10px;
    background-color: rgb(238, 238, 238);
    border: 1px dashed gray;
    height: 100px;
    min-height: 100px;
    resize: vertical;
    max-height: 200px;
}

form > div:nth-child(1) > div > div:nth-child(1) {
    line-height: 40px;
}

input[type=submit] {
    color: white;
    background-color: rgb(230, 145, 55);
    padding: 5px 50px;
    margin: 30px;
    border: none;
    border-radius: 0 90px 90px 0;
    box-shadow: 0 10px 0 0 red;
}